Well when ass is introduced too early during peak levels of natural testosterone, you're risking premature ejaculation, STD's, really poor 'preformance', teen pregnancy, Hell you could unexpectedly nut in her eye and blind the bitch.
Now on the other hand AAS during peak testosterone times; you don't even need steroids for one, they give you a slight edge but with all of the stuff you are supposed to be doing on 'roids, if you do them with your test levels as they are you'll blow up all the same.
Now thats just the benifits of natural training, roids during developement (you may say you are done growing but so long as that test is high your body isn't developed yet) will surpress your natural test porduction, and can decrease it for life, it will shut down your developement, Which (I believe) can irregulate your thyroid glands which will affect all of your systems. Your immune system takes a large blow, as well the platlets in your bones fuse prematurely, if used at the wrong point in developement can cause very brittle bone structure.
Basically you only get one go at guilt free no strings attatched pure high testosterone, not worth the money in my opinion. I told you in that thread that I did all of my shit right, and I put on 15lbs natty in just over one month. Those are astronomical gains. You can make them too. DDP
As well as a great signature on this board pointed out: "Steroids are not magic people" I did a cycle when I was young and it didn't do sweet fuckall, because I didn't get everything with my training dialed in. Basically if you cant build a solid base with your stats, steroids will be an expensive jepordization of your health with little benefit. They will do next to nothing.
I know thats not what you wan't to hear, people like to put steroids up on a pedasal as an instant growth shortcut, believe me it takes a lot of work. Its like taking a shortcut by climbing over a mountain range: Yep you'll get there sooner, but you have to give it your ALL and some, and if you don't know how to handle yourself properly you could hurt yourself really bad. And believe me you can fall hard.
btw This should probably be on the anabolic thread.